One example of this is called a bedsore. It is important to keep the burn site clean and sterile to prevent infection. Describe the structure and function of the subcutaneous layer. Immune cells, such as macrophages, roam the area and engulf any foreign matter to reduce the chance of infection.
Fibroblasts generate scar tissue in the form of collagen, which forms a basket-weave pattern that looks different from normal skin. Acne is a result of over-productive sebaceous glands, which leads to formation of blackheads and inflammation of the skin.
One common form of cancer is skin cancer. Acne results from infection by acne-causing bacteria Propionibacterium and Staphylococcuswhich can lead to redness in light skinned individuals and hyperpigmentation in darker skinned individuals.
This is an example of a minor or local injury, and the skin manages to react and treat the problem independent of the rest of the body.
These tissues include stratified squamous epithelium, glandular epithelium, dense irregular CT, smooth muscle tissue, blood vessels, adipose tissue, and nervous tissue. The sebum, when oxidized by exposure to air, turns black, known as a blackhead. Functions of the skin include protection, excretion, regulation of body temperature, sensory reception,immunity, synthesis of Vitamin D, and blood reservoir.
At some point, they begin to grow toward the surface and become an uneven patch, bump, growth, or scar on the skin surface Figure 5.
However, modern cosmetic procedures, such as dermabrasion, laser treatments, and filler injections have been invented as remedies for severe scarring.
Describe the structure, function, secretion, and location of sebaceous glands Calculating the Size of a Burn. The fact that cancers can also occur on areas of the body that are normally not exposed to UV radiation suggests that there are additional factors that can lead to cancerous lesions.
A second-degree burn goes deeper and affects both the epidermis and a portion of the dermis. Name two modified apocrine glands of the skin.
By the end of this section, you will be able to: Burns are an injury to the skin that occur as a result of exposure to extreme heat, radiation, or chemicals. This plug is initially white, known as a whitehead. These mutations can result in cell populations that do not die when they should and uncontrolled cell proliferation that leads to tumors.
If this is done, the burn will heal within several weeks. It is the most common of all cancers that occur in the United States and is frequently found on the head, neck, arms, and back, which are areas that are most susceptible to long-term sun exposure. Watch this video to learn more about skin grafting procedures.
Bedsores are most common in elderly patients who have debilitating conditions that cause them to be immobile. Diseases One of the most talked about diseases is skin cancer.
Bedsores, also called decubitis ulcers, are caused by constant, long-term, unrelieved pressure on certain body parts that are bony, reducing blood flow to the area and leading to necrosis tissue death. Specific parts of the body are associated with a percentage of body area.
Bedsores and stretch marks are the result of excessive pressure on the skin and underlying tissue. Basal cell carcinomas start in the stratum basale and usually spread along this boundary. Skin injuries set off a healing process that occurs in several overlapping stages. Other disorders, not discussed here, include seborrheic dermatitis on the scalppsoriasis, cold sores, impetigo, scabies, hives, and warts.
In contrast, scars that result from acne and chickenpox have a sunken appearance and are called atrophic scars. These burns result in swelling and a painful blistering of the skin.
Describe some major homeostatic imbalances of the skin. A corn is a specialized form of callus. First-degree and second-degree burns usually heal quickly, but third-degree burns can be fatal because they penetrate the full thickness of the skin. Consider visiting a dermatologist to talk about why he or she entered the field and what the field of dermatology is like.
Full-thickness burns cannot be repaired by the body, because the local tissues used for repair are damaged and require excision debridementor amputation in severe cases, followed by grafting of the skin from an unaffected part of the body, or from skin grown in tissue culture for grafting purposes.
In general, cancers result from an accumulation of DNA mutations.Review!of!Integumentary! (Skin)System!!!! Directions:Useclassnotes&Unit6Sections3(hardcopyedition)andChapter7Sections3(electronicversion).! Skin!Layers! Define!the. Study A & P Chapter 6 Flashcards: Integumentary System Flashcards at ProProfs - A& P Integumentary system ch.
6. Anatomy and Physiology Chapter 6: Skin and the Integumentary System Two or more kinds of tissues grouped together and performing specialized functions constitute an organ.
The cutaneous membrane (commonly called skin), hair follicles, glands, and nails are all part of the integumentary system. Chapter 6 Integumentary System Introduction The skin, the largest organ in the body, and its accessory structures constitute the integumentary system.
Skin and its tissues Skin is a protective covering, helps regulate body temperature, houses sensory receptors, synthesizes chemicals, and excretes wastes.
Anatomy and Physiology Chapter 6: Skin and the Integumentary System Two or more kinds of tissues grouped together and performing specialized functions constitute an organ. The cutaneous membrane (commonly called skin), hair follicles, glands, and nails are all part of the integumentary.
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